Silver
Folsom Water Supply
Silver occurs naturally in surface and groundwater and can be added to water as a biocide that inhibits growth of bacteria and algae. Increasingly, the use of antimicrobial nano-sized silver particles in consumer products contributes to silver in water sources used for drinking water.
10
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | 40.0 ppb | 2 | 2 | 40.0 ppb |
| 2017 | ND | 2 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-05-19 | AD91583 | ND |
| 2014-05-19 | AD91583 | ND |
| 2016-11-28 | AE12015 | 40.0 ppb |
| 2016-11-28 | AE12015 | 40.0 ppb |
| 2017-05-08 | AE14017 | ND |
| 2017-05-08 | AE14017 | ND |
| 2019-09-23 | B1904330-001 | ND |
| 2019-09-23 | B1904330-002 | ND |
| 2019-09-23 | B1904330-001 | ND |
| 2019-09-23 | B1904330-002 | ND |